How many distinct triangles can be drawn using three of the dots below as vertices?
1 answer:
Answer:
18
Step-by-step explanation:
There are 6 dots. The number of ways we can select 3 from 6 is:
₆C₃ = 6! / (3! (6−3)!)
₆C₃ = 6! / (3! 3!)
₆C₃ = 6×5×4 / (3×2×1)
₆C₃ = 20
However, 2 of these combinations are lines, not triangles.
So there are 18 possible distinct triangles.
You might be interested in
The least common multiple of 5 and 10 is 5. I hope this helps you.
Answer:
I think it should be 5y+24
Answer:
2:3
Step-by-step explanation:
Answer:
y = -7/6x
Step-by-step explanation:
y - y1 = m*(x-x1)
m=y/x
y - (-7) = -7/6*(x-6)
y + 7 = -7/6x + 7
y = -7/6x + 7 - 7
y = -7/6
Answer:
where is the graph
Step-by-step explanation:
